How Quickly Does Thuja Plant Grow?

Thuja plants, commonly known as arborvitaes, are a popular choice for both landscapers and homeowners looking to add privacy and greenery to their outdoor spaces. With their dense foliage and ability to thrive in various climates, thuja plants have become a go-to option for hedges and screens. One of the key factors to consider when choosing any plant for your garden is its growth rate. In this article, we will explore how quickly thuja plants grow and what factors can affect their growth.

Understanding Thuja Plants

Before delving into the growth rate of thuja plants, it is essential to have a basic understanding of these evergreen shrubs. Thuja belongs to the cypress family and includes several species, such as Thuja occidentalis (American arborvitae), Thuja plicata (western red cedar), and Thuja orientalis (oriental arborvitae). These plants are native to North America and Asia and are widely cultivated for their ornamental value.

Thuja plants typically have a conical or columnar shape, with dense foliage consisting of scale-like leaves. They can vary in height from small shrubs to tall trees, depending on the species and variety. The foliage ranges in color from vibrant green to golden yellow, providing year-round interest in the landscape.

Growth Rate of Thuja Plants

The growth rate of thuja plants can vary depending on several factors, including the species, climate conditions, soil quality, and care provided. Generally, thuja plants have a moderate to fast growth rate, making them an excellent choice for those looking to establish privacy screens or hedges relatively quickly.

Species Variations

Different species of thuja plants have varying growth rates. Thuja occidentalis, also known as the American arborvitae, is one of the most commonly cultivated species. It typically grows at a moderate rate, adding around 12 to 24 inches of height per year under ideal conditions. On the other hand, Thuja plicata, commonly known as the western red cedar, is known for its fast growth rate and can add up to 3 feet of height per year.

Climate and Environmental Conditions

The climate and environmental conditions in which thuja plants are grown can significantly impact their growth rate. Thuja plants prefer full sun to partial shade and thrive in areas with well-draining soil. They are adaptable to a wide range of soil types, including sandy, loamy, and clay soils, as long as they are not waterlogged.

In regions with mild climates and longer growing seasons, thuja plants tend to grow faster compared to areas with shorter growing seasons or harsh winters. However, some species, such as Thuja occidentalis, are hardy and can tolerate colder climates.

Soil Quality

Soil quality plays a crucial role in the growth of thuja plants. Well-draining soil that retains moisture without becoming waterlogged is ideal for their healthy growth. Amending the soil with organic matter, such as compost or aged manure, can improve its fertility and drainage. Regularly testing the soil’s pH level and maintaining it within the optimal range (around 6.0 to 7.5) can also promote better growth.

Proper Care and Maintenance

Providing proper care and maintenance is essential for optimal growth of thuja plants. Regular watering is crucial during the establishment phase, especially for younger plants. Once established, thuja plants are relatively drought-tolerant but still benefit from occasional deep watering during dry spells.

Mulching around the base of the plant helps retain moisture, suppress weeds, and regulate soil temperature. It is advisable to apply a layer of organic mulch, such as wood chips or bark, taking care not to pile it against the trunk.

Pruning thuja plants can also influence their growth rate. Regular pruning helps maintain their desired shape, encourages denser foliage, and prevents them from becoming too tall or wide. Early spring is the best time to prune thuja plants before new growth begins.

Conclusion

Thuja plants are known for their moderate to fast growth rate, making them an excellent choice for privacy screens and hedges. However, it is essential to consider the species, climate conditions, soil quality, and care provided when determining how quickly they will grow. By understanding these factors and providing the necessary care, you can enjoy the beauty and privacy offered by thuja plants in your outdoor space.